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Finding the Fourth Proportional to 52,884.81, 72,980.55 and 29,011.50

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Solution

The fourth proportional to 52,884.81, 72,980.55 and 29,011.50 is: 40,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,884.81 : 72,980.55 = 29,011.50 : x
  2. Step 2: Convert to fraction form
    52,884.81/72,980.55 = 29,011.50/x
  3. Step 3: Cross multiply
    52,884.81x = 72,980.55 × 29,011.50
  4. Step 4: Simplify right side
    52,884.81x = 2,117,275,226.33
  5. Step 5: Solve for x
    x = 2,117,275,226.33/52,884.81
  6. Step 6: Final answer
    x = 40,035.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.